2021447240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{17851}}^1$

素因数の和:18030

約数の個数: 64

約数和(自身を含む): 4820040000

約数和(自身を除く): 2798592760

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 149, 152, 190, 298, 380, 596, 745, 760, 1192, 1490, 2831, 2980, 5662, 5960, 11324, 14155, 17851, 22648, 28310, 35702, 56620, 71404, 89255, 113240, 142808, 178510, 339169, 357020, 678338, 714040, 1356676, 1695845, 2659799, 2713352, 3391690, 5319598, 6783380, 10639196, 13298995, 13566760, 21278392, 26597990, 50536181, 53195980, 101072362, 106391960, 202144724, 252680905, 404289448, 505361810, 1010723620, 2021447240]

約数ペア:

[(1, 2021447240), (2, 1010723620), (4, 505361810), (5, 404289448), (8, 252680905), (10, 202144724), (19, 106391960), (20, 101072362), (38, 53195980), (40, 50536181), (76, 26597990), (95, 21278392), (149, 13566760), (152, 13298995), (190, 10639196), (298, 6783380), (380, 5319598), (596, 3391690), (745, 2713352), (760, 2659799), (1192, 1695845), (1490, 1356676), (2831, 714040), (2980, 678338), (5662, 357020), (5960, 339169), (11324, 178510), (14155, 142808), (17851, 113240), (22648, 89255), (28310, 71404), (35702, 56620)]